13859870 has 8 divisors (see below), whose sum is σ = 24947784. Its totient is φ = 5543944.

The previous prime is 13859863. The next prime is 13859887. The reversal of 13859870 is 7895831.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 692984 + ... + 693003.

It is an arithmetic number, because the mean of its divisors is an integer number (3118473).

Almost surely, 2^13859870 is an apocalyptic number.

13859870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13859870 is a deficient number, since it is larger than the sum of its proper divisors (11087914).

13859870 is a wasteful number, since it uses less digits than its factorization.

13859870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385994.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 13859870 is about 3722.8846342588. The cubic root of 13859870 is about 240.2074017357.

The spelling of 13859870 in words is "thirteen million, eight hundred fifty-nine thousand, eight hundred seventy".